Pipe-wrench.



PATENTED OCT. 15, 1907.

J. E. RICHARDS.

PIPE WRENCH.

APPLIoATIoN FILED rBB.2a. 1ao7.

IHIIH UNITED nIA'rEiII? OFFICE,

JosEPI-I RICHARDS, or MELROSE, MASSACHUSETTS, AssIeNon 'ro IRLAND PIPE WRENCH COMPANY, A CoRPoRATIoN or MAINE.

f PIPE-Wnriireiatv Specication of Letters )Pai-.ent

vPatented Oct. 15, 1907.

Application filed February 28, 1907- Serial No. '$597,921.

' class and character embraced in the Letters Patent of the United States, issued to Frances A. Irland, execu-v trix oi David H. irland, deceased, datedOctobe'r 3, 1905, No. 800,850.

'Iln` invention particularly relates to the hanging or jointing Cf the operating-rod to, or'on the movable 0r swinging jaw, and its object is to enable the movable jaw to be easily dismounted, or disjointed from the operating rod, first having removed the iulerum-pin,

, of the movable jaw, and similarly to be easily mounted on, or jointed to the operating-rod.

"'lo the end stated, this invention consists in previding the hole or bearing at the end oi the operating-rod to be hung or jointed on a pivot-pin of the movable jaw with a lateral way or passage leading thereto, all,

so that said pivot-pin is thereby enabled to be engaged with said hearing of the operating-rod by simply sliding said pin through said lateral way or passage into its'position in said hole or bearing, all as hereinafter more fully appears.

ln the drawings, forming part of this specification, a pipe-wrench of the class stated'isl illustrated, and as having the bearing of the operating-rod ior the axialpin el the swinging or movable .jaw adapted as and for the purpose before stated.

Figure l, in part, .is a central longitudinal section and, in part, aside view with the handle and the operating-lever ior the operating-rod broken off, and also it shows, in dotted lines, the movable-jaw in its open position, and the operating-lever in its corresponding position therefor. Fig. 2 is a plan view. Fig. 3 is a transverse section, in detaiLdotted line 33, Fig. l. Fig. 4 is a view, indetail, of the end of the operatingrod detached to more plainly show the feature oithis invention;

1n `the drawings, A is the fixed jaw; B is the movable' or swinging jaw; C is the chambered-shank;A D is the tubular-handle.; F is the ulcrum-pin of the movable jaw; G is the operating-rod hung at one end on apivot-pin a oi the movable jaw i3; H isA a cylindrical plug or block within the tubular-handle D and having the other end of -the operating-rod G fastened to it; K

is a spiral or coiled spring surrounding the operatingrod within the handle D, andvconfmed, end to end,

between its said block H and a shoulder k at the end of the handle toward the mdvable-jaw; L isrthe handle or operating-lever for openingor swinging the movable-jaw from the fixed jaw, against the tension of the spring K, and the reaction of which spring closes the movable-jaw toward the fixed jaw, when the 'pressure' on the operating handle is released, all and otherwise,

` except as to the feature of this invention to be now described, substaiitiallyas ldescribed in said Letters l Patent and forming of themselves no part of this invention, and therefore needing no further description herein. A I

The pivot-pin a of the movable jaw for the operating-rod G is, asin said patent, fixed to the movable jaw` B and it passes transversely through a bearing N B can be placed in, or removed from its bearingA N of the operating-rod, as may be wished, whereby said` jaw by its axial-pin a can be easily mounted or jointed on, er' dismounted or disjointed from the operatingrod, first, having, if the'movable jaw is mounted on the'ehambered-shank, dismounted the jaw therefrom, and all without disturbing, or detaching, or interfering with, or in any othglr way disarranging or changing the position or adjustment of any other one of the operating parts of the wrench, the advantages of which are obvious and most especially important'whem'as is often the case, in the practical use of the wrench, the Inovable jaw has been broken and it becomes necessary or requisite to replace it with another. This 'was not possible with the said wrench as it has been heretofore constructed, and its parts assembled.

within said slotted-shank, alic'ed pivot-pin, on said swinging-jaw and at one side of'said'fulcrum-pin und crossing a vertical slotted-way ofgsaidswinging-jaw, a rod having at one end ,a Uearing-hoie'iy'ivvhich to hangv it on the;ex'

posed lportion of saidpi'ot-pin within said slotted-way,

and which bearing-hole' has away opening atandV leading from the upper ledge ofsaid rod to said bearing-hole, a head within; and loosely fitting the bore of said handle and lhaving rigidly attached to 'it the end of said rod opposite to its saidend hung on said pivot-pin, a coiledspring conlined, end to end, within and between a shoulder of said handle and said head, and a lever fulcrumed and otherwise suitably arranged as when properly operated to move said rod against thev tension of said spring, and when released to permit said rod to be moved by the tension of 10 said sp1-ing, all substantially as described, and for the several purposes specified.

In Witness whereof, I have hereunto set my hand in the presence of two subscribing witnesses.

JOSEPH E. RICHARDS.. Witnesses:

ALBERT W. BROWN, SUMNER B. RoamsoN.v 

